Hong Kong weather
Our guide to the weather in Hong Kong during September
September is an ideal time to visit Hong Kong, with its mild climate and comfortable temperatures. There are also a variety of events to enjoy, such as the Hong Kong Wine and Dine Festival and the Hong Kong Dragon Boat Carnival. We've looked at the most up-to-date weather data for Hong Kong, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Hong Kong weather in September.
How hot is it in Hong Kong during September?
The temperature is extremely stable in September with average highs of 30℃ and lows just 3℃ lower at 27℃. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Hong Kong during September?
On average, there will be 12 rainy days during the month, amounting to 341.2mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, September will see just 6 days that produce a storm.
Is it windy in Hong Kong during September?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during September. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.
How warm is the sea in Hong Kong during September?
The water around Hong Kong reaches a very pleasant 29℃ during September. This is very warm, and will feel bath-like. People who normally feel the cold will find this temperature perfectly acceptable. The hot air temperature and relatively high humidity will mean that you will feel comfortably warm when coming out of the water.
Weather in Hong Kong
Our month-by-month guide to the weather and climate in Hong Kong
Hong Kong weather in
JanuaryHong Kong weather in
FebruaryHong Kong weather in
MarchHong Kong weather in
AprilHong Kong weather in
MayHong Kong weather in
JuneHong Kong weather in
JulyHong Kong weather in
AugustHong Kong weather in
SeptemberHong Kong weather in
OctoberHong Kong weather in
NovemberHong Kong weather in
December